HORTICULTURE SCIENCE
PLANT BIOTECHNOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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splicing human genes into bacteria to produce insulin.
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selectively breeding dogs to create a new breed.
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producing a clone of a farm animal.
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determining the sequence of genes in DNA fingerprinting.
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Detailed explanation-1: -Selective breeding was likely the earliest form of biotechnology used by humans to improve the genetic characteristics of plants and animals. Biotechnology includes any use of science or technology to alter the genetic characteristics of a particular plant or animal.
Detailed explanation-2: -The earliest example of biotechnology is the domestication of plants and animals. Domestication began over 10, 000 years ago when our ancestors started keeping plants as a reliable source of food. Rice, barley and wheat were among the first domesticated plants.
Detailed explanation-3: -Selective breeding was established as a scientific practice by Robert Bakewell during the British Agricultural Revolution in the 18th century. Arguably, his most important breeding program was with sheep. Using native stock, he was able to quickly select for large, yet fine-boned sheep, with long, lustrous wool.
Detailed explanation-4: -Selective breeding Humans selectively bred dogs that were best suited for the various roles required of them, based on their fitness, ability and utility. Nowadays, in order to win dog shows, pedigree dogs have been bred to emphasise certain physical features in accordance with breed standards set by the Kennel Club.